In Fig. REF , it is easily found that the scheme using squeezed state (dashed-blue curve, \(s=6\) ) has an enhanced SNR than that with coherent state (solid-gray curve), which results in an improved resolution as depicted in Fig. REF . That is to say, our scheme has a resolution beyond that in the reference [1]} when \(s=6\)  are same. Actually, this conclusion can be extended to the case of almost any value of \(s\)  (including not only weak scattering lens but also strong scattering lens).
